From the developer: "The Windows Standard Serial Communications Library for C/C++ (WSC4C) is an asynchronous serial communications library based on the Windows serial communications API. Includes 28 functions plus modem control, ASCII, XMODEM and YMODEM, ANSI terminal emulation, and 15 example programs, including console mode and mult-threaded examples. Also includes examples for Borland C++ Builder and Microsoft Foundation Classes (MFC). WSC4C requires a Microsoft, Borland, Watcom, or Lcc-Win32 Windows C/C++ compiler."